Drilling holes in trailer roof to install solar: worth it?

I made aluminum angle brackets for my panels. First, put down a strip of Eternabond under the bracket. Next glop some Dicor down, then screw the bracket to the roof, and put a little more Dicor over the screws. It can't leak doing that.
I would also never trust taping a panel to a rubber roof. I also enjoy not having to mess around with anything, and the batteries just get charged.